According to the Immigration Act of Thailand, individuals who have been convicted of certain serious crimes, such as drug offenses, human trafficking, or terrorism-related offenses, may be denied entry. Similarly, individuals who have been sentenced to imprisonment for a period of more than one year may also be prohibited from entering Thailand.
It is important to consult with the Thai embassy or consulate in your home country for specific information regarding your situation. You may need to provide documentation, such as court records or proof of rehabilitation, to support your application for entry.
It's also worth mentioning that certain types of visas may be more restrictive than others in terms of entry requirements for convicted felons. For instance, the tourist visa (TR visa) may be more difficult to obtain for individuals with criminal convictions, while other visas, such as the business visa (Non-B visa) or the work visa (Non-O visa), may have different requirements.
Therefore, it is essential to carefully research and understand the visa regulations that apply to your specific case. If you have any questions or concerns, you should contact a qualified immigration attorney or legal advisor for guidance.